CN115200955B - Test piece forming device for compression strength test of extrusion type flexible concrete - Google Patents
Test piece forming device for compression strength test of extrusion type flexible concrete Download PDFInfo
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- CN115200955B CN115200955B CN202210773350.6A CN202210773350A CN115200955B CN 115200955 B CN115200955 B CN 115200955B CN 202210773350 A CN202210773350 A CN 202210773350A CN 115200955 B CN115200955 B CN 115200955B
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- 238000012360 testing method Methods 0.000 title claims abstract description 158
- 238000001125 extrusion Methods 0.000 title claims abstract description 39
- 230000006835 compression Effects 0.000 title claims abstract description 16
- 238000007906 compression Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000012546 transfer Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 14
- 230000009471 action Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0298—Manufacturing or preparing specimens
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test piece forming device for an extrusion type flexible concrete compression strength test, which comprises a supporting plate, a test die positioned above the supporting plate and a driving limiting device for connecting the supporting plate and the test die, wherein the test die is arranged in parallel with the supporting plate and is of a cylindrical structure, the driving limiting device comprises a first disc, a second disc, an extrusion mechanism penetrating the first disc and a driving mechanism positioned below the first disc and the second disc, the first disc and the second disc are respectively arranged at two ends of the test die, the extrusion mechanism comprises a transmission rod and a pressing plate arranged at one end of the transmission rod, and one end of the transmission rod with the pressing plate stretches into the test die to extrude concrete.
Description
Technical Field
The invention relates to the technical field of concrete cube compressive strength test piece forming, in particular to a test piece forming device for an extrusion type flexible concrete compressive strength test.
Background
The extrusion type flexible concrete has lower strength, belongs to dry and hard concrete, can not adopt a vibrating chamber mode to form test pieces, adopts a static pressure forming method to form according to material characteristics and construction characteristics, obtains the mass of a mixture required by each test piece according to the actual measurement of dry density and water content on site during forming according to the calculation of test mould volume, then weighs the mixture, pours the weighed mixture into a test mould, adopts a pressing device such as a press machine to carry out static pressure forming, and has a volume larger than the test mould volume due to loosening of the concrete, the test piece forming time is long, the quality is poor, and the stress state during forming the test piece can not be consistent with the site construction state.
The patent number is CN 201613589U's chinese patent, discloses a test piece forming device for extrusion formula flexible concrete compressive strength test, including the examination mould, examination mould top cover has the cover mould, and the interior cross-section size of cover mould is unanimous with the interior cross-section size of examination mould, and the clamp plate is placed in the cover mould, and the size of clamp plate lower surface is unanimous with the interior cross-section size of cover mould, and the transmission stand has been placed to the clamp plate top.
The test mould in the above patent is vertically placed, in order to complete the concrete compressive strength test, workers are required to lift the concrete to a high position to cause the test mould, the labor intensity is high, the test piece forming device required by the compressive strength test of the concrete with larger specification is large in size, and the test piece forming device cannot be placed indoors to complete the corresponding test.
Disclosure of Invention
The invention aims to provide a test piece forming device for an extrusion type flexible concrete compressive strength test, and aims to solve the problems that an existing concrete test piece forming device is placed vertically, a test mold with a large specification is inconvenient to place in a room to complete the test, and meanwhile, workers are excessively tired in filling concrete.
The invention is realized in the following way:
the utility model provides a test piece forming device for extrusion formula flexible concrete compressive strength test, including the backup pad, be located the examination mould of backup pad top and be used for connecting backup pad and examination mould drive restriction device, examination mould parallel support board is placed and is tubular structure, drive restriction device includes first disc, the second disc, run through the extrusion mechanism of first disc and be located the actuating mechanism of first disc and second disc below, first disc and second disc are placed respectively at the both ends of examination mould, extrusion mechanism includes the transfer line and installs the clamp plate in transfer line one end, the transfer line has the one end of clamp plate to stretch into the examination mould and extrude the concrete, actuating mechanism includes the motor, one end and motor output shaft's bracing piece and the drive device of cover on the bracing piece are established to the cover, the both ends of bracing piece are passed through the bearing and are connected with the backup pad, and drive device drive examination mould rotates.
By adopting the technical scheme, the setting of backup pad is convenient for provide the support for the installation of examination mould and drive restriction device, the setting of open structure is convenient for rotate for the examination mould and is convenient for with the storage of clamp plate cooperation for concrete provides the space, for carrying out concrete compressive strength test and facilitate, drive restriction device's setting is convenient for make examination mould stable installation in the backup pad through its work, and be convenient for carry out compressive strength test for the examination mould of changing corresponding specification according to the concrete to different specifications and facilitate, drive examination mould rotation under drive restriction device's effect simultaneously, make concrete evenly distributed, and apply pressure to the concrete, accomplish the test to concrete compressive strength, the setting of first disc and second disc is convenient for support the both ends of pressing the examination mould, drive the examination mould through the rotation of first disc and second disc and rotate, and keep away from each other when changing the examination mould, for changing examination mould and facilitate, the setting of extrusion mechanism is convenient for apply pressure to the concrete in the examination mould through its work, for concrete compressive strength test is convenient.
Further, the end face of the transmission rod is fixedly connected with a chuck, the side wall of the pressing plate is provided with a clamping groove along the radial direction of the pressing plate, and the chuck is arranged in the clamping groove.
By adopting the technical scheme, the setting of chuck and buckle groove is convenient for the cooperation work and is convenient for the clamp plate from quick assembly disassembly on the transfer line, and the setting of restriction spout and projection is convenient for the cooperation work restriction its removal.
Further, the drive device comprises a first drive assembly, the first drive assembly comprises a sleeve and two extrusion discs respectively positioned at two ends of the sleeve, two end faces of the sleeve are fixedly connected with a plurality of limiting screws, the limiting screws penetrate through the extrusion discs and are connected with nuts, the sleeve is sleeved on the support rod, side wall threads of the sleeve are provided with limiting bolts, the inner ends of the limiting bolts are propped against the side wall of the support rod, the lower ends of the first disc and the second disc are respectively supported on the two sleeves, and the side walls, close to each other, of the two extrusion discs are respectively embedded with a plurality of balls and extrude the side wall of the first disc or the side wall of the second disc.
By adopting the technical scheme, the sleeve is convenient to stably install on a certain supporting rod under the action of the limit bolt, and the sleeve and the supporting rod are kept to synchronously rotate, the position of the first disc and the second disc relative to the sleeve is convenient to limit by the arrangement of the extrusion disc, the lower ends of the first disc and the second disc are stably supported on the sleeve, and the first disc and the second disc are driven to drive the test die to rotate under the rotation of the sleeve.
Further, the driving device comprises a second driving component, the second driving component comprises a torsion spring and two driving devices which are respectively positioned at two ends of the torsion spring, each driving device comprises a connecting plate, an annular pipe arranged at the lower end of the connecting plate and a driving roller connected with the connecting plate through a main shaft, one end of the main shaft, which extends out of the connecting plate, is fixedly connected with a belt pulley, the belt pulley is sleeved on a supporting rod, the belt pulley is connected with the supporting rod through a belt, and the driving roller is in contact with the side wall of the test die.
By adopting the technical scheme, the torsion spring is convenient to force the two connecting plates to be close to each other all the time through the work of the torsion spring, so that the driving roller is attached to the side wall of the test die to be placed, and the driving roller is driven to rotate through the rotation of the supporting rod, so that the rotation of the test die is realized.
Further, a plurality of buckle spouts have been seted up to the lateral wall that first disc is close to the second disc, the buckle spout sets up along the radial direction of first disc, be provided with the tubular motor that lateral wall middle part has the screw thread in the buckle spout, the side of first disc is provided with a plurality of arc clamp plates, buckle slide mounting of arc clamp plate side fixed connection is in the buckle spout, and tubular motor screw thread passes buckle slide, the examination mould is located between a plurality of arc clamp plates, and the cardboard of arc clamp plate lateral wall inserts in the draw-in groove of examination mould lateral wall.
By adopting the technical scheme, the setting of arc clamp plate is convenient for go up and down at the work of tubular motor, be close to each other for a plurality of arc clamp plates and support the lateral wall of pressing the test mould, make the test mould keep relative static with first disc, simultaneously for the installation of different specification test moulds provides the support, the setting of buckle spout and buckle slide is convenient for cooperation work makes the relative first disc of arc clamp plate stable and swing joint, the setting of cardboard and draw-in groove is convenient for cooperation work makes test mould and arc clamp plate stable connection face, the setting of circular hole is convenient for provide the passageway for the pass of transfer line.
Further, the circular hole has been seted up to the lateral wall of first disc, circular hole inside wall fixedly connected with projection, and the transfer line passes circular hole, and in the projection stretches into the restriction spout of transfer line lateral wall.
Further, the side wall of the test die is provided with a feeding pipe, a sealing column is arranged at the position of the feeding pipe, a connecting rod above the sealing column and a threaded column arranged at the upper end of the connecting rod are arranged at the upper end of the inside of the feeding pipe in a threaded manner, the sealing column is positioned at the lower end of the inside of the feeding pipe, the lower side face of the sealing column is arranged into an arc-shaped structure, and a polygonal groove for installing a polygonal column of the side wall of the second disc is vertically formed in the middle of the end face of the test die.
By adopting the technical scheme, the setting of inlet pipe is convenient for provide the passageway for concrete filling in the space that test mould and clamp plate are constituteed, the setting of seal post is convenient for block up the inlet pipe after filling concrete, and the arc structure of seal post and test mould inner wall constitute complete lateral wall, for concrete compressive strength test is convenient, the screw thread installation is convenient for in the inlet pipe for the setting of seal post is stable to be installed in the inlet pipe and is convenient, the setting of polygon recess is convenient for provide the space for the installation of polygon post, and then make test mould and second disc keep relatively static, so that rotate under the cooperation of second disc and first disc and provide the support for the test mould, for making the concrete evenly distributed in the test mould provide convenience.
Further, the drive limiting device further comprises two limiting mechanisms which are symmetrically placed, each limiting mechanism comprises a rotating shaft, vertical plates located at two ends of the upper portion of the rotating shaft and arc-shaped retaining plates mounted on the side edges of the vertical plates, two thread structures are symmetrically arranged at two ends of the side walls of the rotating shaft, a thread sleeve is fixedly connected with the lower portion of each vertical plate and arranged on a sliding clamping plate on the rotating shaft, the two arc-shaped retaining plates are mounted in a first annular groove and a second annular groove of the first disc and the second disc respectively, and a plurality of balls are inlaid on the side walls of the arc-shaped retaining plates.
By adopting the technical scheme, the setting of the limiting mechanism is convenient for limiting the positions of the first disc and the second disc through the work of the limiting mechanism, providing support for stable work of the test mould, the setting of the first annular groove and the second annular groove is convenient for the installation of the arc-shaped retaining plate to provide space, and the rotation of the first disc and the second disc is not influenced, meanwhile, the first disc and the second disc are stably placed under the cooperation of the arc-shaped retaining plate, the first annular groove and the second annular groove, the setting of the rotating shaft is convenient for adjusting the relative movement of the two vertical plates according to the length of the test mould, and the test mould is extruded for changing the relative positions of the first disc and the second disc to enable the relative positions of the first disc and the second disc to be stably placed.
Further, the side sets up to the open structure that runs through from top to bottom in the backup pad, and both edges all are provided with the roller in the open structure, and the roller holds in the palm and puts the examination mould, and backup pad below both ends all are provided with the riser, and the riser is passed at the bracing piece both ends, and slide clamping groove has all been seted up at both sides of backup pad side, and slide clamping plate's lower extreme and pivot are installed in slide clamping groove.
By adopting the technical scheme, the setting of roller is convenient for hold in palm and put the examination mould, provides the support for the examination mould rotates under the effect of external force, and the setting of slip draw-in groove is convenient for provide the space for the installation of slip cardboard lower extreme and pivot, and provides the space for the removal of slip cardboard.
Compared with the prior art, the invention has the beneficial effects that:
1. the setting of test mould is convenient for cooperate with the clamp plate and provides the space for the storage of concrete, for carrying out concrete compressive strength test and provide convenience, and change the vertical mode of placing of test mould, avoid accomplishing the concrete compressive test when the test mould specification is great to be placed in the room, reduce staff's intensity of labour of filling concrete simultaneously;
2. the driving limiting device is arranged to facilitate the stable installation of the test mould on the supporting plate through the work of the driving limiting device, and facilitate the replacement of the test mould with corresponding specification according to the compression test of the concrete with different specifications, meanwhile, the test mould is driven to rotate under the action of the driving limiting device, so that the concrete is uniformly distributed, the pressure is applied to the concrete, and the test of the compression strength of the concrete is completed;
3. the extrusion mechanism is convenient to apply pressure to the concrete in the test mould by working, so that convenience is provided for testing the compressive strength of the concrete;
4. the driving mechanism is convenient to rotate the test mould through the work of the driving mechanism, so that concrete is uniformly distributed in the test mould.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the support plate of the present invention;
FIG. 3 is a schematic view of a test pattern structure of the present invention;
FIG. 4 is a schematic view of the drive limiting device of the present invention;
FIG. 5 is a schematic view of a first disc construction of the present invention;
FIG. 6 is a schematic view of a second disc construction of the present invention;
FIG. 7 is a schematic view of the pressing mechanism of the present invention;
FIG. 8 is a schematic view of the limiting mechanism of the present invention;
FIG. 9 is a schematic view of the drive mechanism of the present invention;
FIG. 10 is a schematic view of a first drive assembly of the present invention;
FIG. 11 is a schematic diagram of a second drive assembly of the present invention;
in the figure: 1. a support plate; 11. an open structure; 12. a sliding clamping groove; 13. a roller; 14. a riser; 2. testing a mold; 21. polygonal grooves; 22. a feed pipe; 23. a sealing column; 24. a threaded column; 25. a connecting rod; 3. a drive restriction device; 4. an extrusion mechanism; 41. a transmission rod; 411. a chuck; 43. a pressing plate; 431. a buckle groove; 5. a first disc; 51. a first annular groove; 52. a buckle chute; 53. a tubular motor; 54. an arc-shaped pressing plate; 6. a second disc; 61. polygonal columns; 62. a second annular groove; 7. a restriction mechanism; 71. a rotating shaft; 72. a thread structure; 73. a vertical plate; 74. a sliding clamping plate; 75. an arc-shaped retaining plate; 8. a driving mechanism; 81. a support rod; 82. a motor; 83. a first drive assembly; 831. an extrusion plate; 832. a sleeve; 833. limiting the screw; 84. a second drive assembly; 841. an annular tube; 842. a torsion spring; 843. a connecting plate; 844. a driving roller; 845. a belt pulley.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Example 1: referring to fig. 2, it is shown: the utility model provides an experimental test piece forming device of using of extrusion formula flexible concrete compressive strength, includes backup pad 1, and the side sets up to the open structure 11 that runs through from top to bottom in the backup pad 1, and both sides all are provided with roller 13 in the open structure 11, and backup pad 1 below both ends all are provided with riser 14, and slip draw-in groove 12 has all been seted up to the side both edges in the backup pad 1.
Referring to fig. 1 and 3, it is shown that: the backup pad 1 top is provided with test die 2, test die 2 is tubular structure, test die 2 parallel support board 1 places, roller 13 holds in the palm test die 2, test die 2 lateral wall is provided with inlet pipe 22, inlet pipe 22 position department is provided with seal post 23, install the connecting rod 25 in seal post 23 top and install the screw thread post 24 in the connecting rod 25 upper end, screw thread post 24 screw thread is installed in the inside upper end of inlet pipe 22, seal post 23 is located the inside lower extreme of inlet pipe 22, and seal post 23 downside sets up to arc structure, polygonal recess 21 has been seted up perpendicularly in test die 2 terminal surface middle part.
Referring to fig. 1 and 4, it is shown that: a drive limiting device 3 is arranged between the supporting plate 1 and the test die 2, the drive limiting device 3 comprises a first disc 5, a second disc 6, an extrusion mechanism 4 penetrating the first disc 5, a driving mechanism 8 positioned below the first disc 5 and the second disc 6 and two symmetrically arranged limiting mechanisms 7,
referring to fig. 5, it is shown that: the side wall that first disc 5 is close to second disc 6 has seted up circular hole and a plurality of buckle spout 52, first ring channel 51 has been seted up to the arc lateral wall of first disc 5, circular hole inside wall fixedly connected with projection, buckle spout 52 sets up along the direction of radius of first disc 5, be provided with the tubular motor 53 of lateral wall middle part screw thread in the buckle spout 52, the side of first disc 5 is provided with a plurality of arc clamp plates 54, buckle slide plate of arc clamp plate 54 side fixed connection is installed in buckle spout 52, and tubular motor 53 screw thread passes the buckle slide plate, the one end of test mould 2 open structure is located between a plurality of arc clamp plates 54, and the cardboard of arc clamp plate 54 lateral wall inserts in the draw-in groove of test mould 2 lateral wall.
Referring to fig. 6, it is shown: the side wall of the second disc 6, which is close to the first disc 5, is fixedly connected with a polygonal column 61, the polygonal column 61 is inserted into the polygonal groove 21, and the arc-shaped side wall of the second disc 6 is provided with a second annular groove 62.
Referring to fig. 7, it is shown that: the extrusion mechanism 4 comprises a transmission rod 41 and a pressing plate 43 arranged at one end of the transmission rod 41, wherein the end face of the transmission rod 41 is fixedly connected with a chuck 411, the side wall of the pressing plate 43 is provided with a clamping groove 431 along the radial direction of the pressing plate, the chuck 411 is arranged in the clamping groove 431, the transmission rod 41 penetrates through a circular hole, a convex column stretches into a limiting chute of the side wall of the transmission rod 41, the pressing plate 43 is positioned in the test die 2, and the other end of the transmission rod 41 is connected with a press machine.
Referring to fig. 8, it is shown that: the limiting mechanism 7 comprises a rotating shaft 71, vertical plates 73 positioned at two ends above the rotating shaft 71 and arc-shaped retaining plates 75 arranged on the side edges of the vertical plates 73, two thread structures 72 are symmetrically arranged at two ends of the side walls of the rotating shaft 71, a sliding clamping plate 74 is fixedly connected with the lower part of the vertical plates 73 and is sleeved on the rotating shaft 71 in a threaded mode, the two arc-shaped retaining plates 75 are respectively arranged in the first annular groove 51 and the second annular groove 62, a plurality of balls are inlaid on the side walls of the arc-shaped retaining plates 75, and the lower ends of the sliding clamping plates 74 and the rotating shaft 71 are arranged in the sliding clamping groove 12.
Referring to fig. 9 and 10, it is shown that: the driving mechanism 8 comprises a motor 82, a supporting rod 81 with one end connected with an output shaft of the motor 82 and a driving device sleeved on the supporting rod 81, two ends of the supporting rod 81 are connected with the vertical plates 14 through bearings, the driving device comprises a first driving component 83, the first driving component 83 comprises a sleeve 832 and two extrusion discs 831 respectively positioned at two ends of the sleeve 832, two end faces of the sleeve 832 are fixedly connected with a plurality of limiting screws 833, the limiting screws 833 penetrate through the extrusion discs 831 to be connected with nuts, the sleeve 832 is sleeved on the supporting rod 81, the side wall threads of the sleeve 832 are provided with limiting bolts, the inner ends of the limiting bolts are propped against the side wall of the supporting rod 81, the lower ends of the first disc 5 and the second disc 6 are respectively supported on the two sleeve 832, and the side walls of the two extrusion discs 831 close to each other are respectively embedded with a plurality of balls and the balls extrude the side wall of the first disc 5 or the second disc 6.
The setting of backup pad 1 is convenient for provide the support for the installation of examination mould 2 and drive restriction device 3, and the setting of open structure 11 is convenient for rotate for examination mould 2 and facilitates, and the setting of roller 13 is convenient for hold in the palm and put examination mould 2, rotates under the effect of external force for examination mould 2 and provides the support, and the setting of slip draw-in groove 12 is convenient for provide the space for the installation of slip cardboard 74 lower extreme and pivot 71, and provides the space for the removal of slip cardboard 74.
The setting of test die 2 is convenient for with clamp plate 43 cooperation for the storage of concrete provides the space, for carrying out concrete compressive strength test and provide the passageway in the space that test die 2 and clamp plate 43 are constituteed, the setting of seal post 23 is convenient for block up inlet pipe 22 after filling concrete, and the complete lateral wall of arc structure and test die 2 inner wall constitution of seal post 23, for concrete compressive strength test is convenient, the setting of screw thread post 24 is convenient for install in inlet pipe 22, for seal post 23 stable installation is convenient in inlet pipe 22, the setting of polygon recess 21 is convenient for provide the space for the installation of polygon post 61, and then make test die 2 and second disc 6 keep relatively static, so as to rotate for test die 2 under the cooperation of second disc 6 and first disc 5 and provide the support, for making the concrete evenly distributed in the test die 2 convenient.
The setting of drive restriction device 3 is convenient for make test die 2 stably install in backup pad 1 through its work, and be convenient for carry out compressive test for the test die 2 of changing corresponding specification according to the concrete to different specifications, simultaneously drive test die 2 rotation under the effect of drive restriction device 3, make concrete evenly distributed, and apply pressure to the concrete, accomplish the test to concrete compressive strength, the setting of first disc 5 and second disc 6 is convenient for support the both ends of pressing test die 2, so that drive test die 2 through the rotation of first disc 5 and second disc 6 rotates, and keep away from each other when changing test die 2, for changing test die 2 facility, the setting of extrusion mechanism 4 is convenient for apply pressure through its work to the concrete in the test die 2, for concrete compressive strength test facility, the setting of actuating mechanism 8 is convenient for realize the rotation of test die 2 through its work, the setting of restriction mechanism 7 is convenient for restrict the position of first disc 5 and second disc 6, for the stable work of test die 2 provides support.
The setting of arc clamp plate 54 is convenient for go up and down under the work of tubular motor 53, be close to each other and support the lateral wall of pressing test mould 2 for a plurality of arc clamp plates 54, make test mould 2 and first disc 5 keep relatively static, the installation of test mould 2 for different specifications simultaneously provides the support, buckle spout 52 and buckle slide's setting is convenient for the cooperation work and makes arc clamp plate 54 stable and swing joint relative first disc 5, the setting of cardboard and draw-in groove is convenient for the cooperation work and makes test mould 2 and arc clamp plate 54 stable connection face, the setting of circular hole is convenient for provide the passageway for the pass of transfer line 41.
The arrangement of the first annular groove 51 and the second annular groove 62 facilitates the installation of the arc-shaped retaining plate 75 to provide space, does not affect the rotation of the first disc 5 and the second disc 6, and simultaneously enables the first disc 5 and the second disc 6 to be stably placed under the cooperation of the arc-shaped retaining plate 75, the first annular groove 51 and the second annular groove 62.
The setting of press is convenient for control transfer line 41 removal through its work, and then drives clamp plate 43 and removes in test mould 2 and exert pressure to the concrete, and chuck 411 and buckle groove 431's setting is convenient for cooperate work to be clamp plate 43 from transfer line 41 quick assembly disassembly is convenient, and the setting of restriction spout and projection is convenient for cooperate work restriction its removal.
The setting of pivot 71 is convenient for adjust the relative movement of two risers 73 according to the length of examination mould 2, for the relative position extrusion examination mould 2 of change first disc 5 and second disc 6 makes its stable placing, and the setting of arc is convenient for cooperate with first ring channel 51, second ring channel 62 makes the position of restriction first disc 5 and second disc 6, and the setting of ball is convenient for reduce the frictional force of arc is kept out 75 relative first disc 5 and second disc 6, for the rotation of first disc 5 and second disc 6 provides convenience.
The motor 82 is arranged to drive the support rod 81 to rotate through the operation of the motor, so that the driving device is forced to control the test die 2 to rotate.
The setting of sleeve 832 is convenient for install on a certain bracing piece 81 under the effect of stop bolt, and makes sleeve 832 and bracing piece 81 keep rotating in step, and the setting of extrusion disc 831 is convenient for restrict the position of first disc 5, second disc 6 relative sleeve 832, and the lower extreme of being first disc 5 and second disc 6 is stable to be held in the palm to be put on sleeve 832, and drives first disc 5 and second disc 6 under the rotation of sleeve 832 and drive test die 2 rotation.
When the concrete compression strength test device is used, corresponding test dies 2 and pressing plates 43 are selected according to concrete compression strength test requirements, the pressing plates 43 are installed on the transmission rods 41, the test dies 2 are arranged between the first disc 5 and the second disc 6, the first disc 5 and the second disc 6 are pressed against two ends of the test dies 2 under the action of the rotating shaft 71, the pressing plates 43 are positioned in the test dies 2, concrete is filled in the test dies 2 through the feeding pipes 22, the test dies 2 rotate under the action of the driving device while filling, the concrete is uniformly distributed, and after filling, the pressing plates 43 are moved to apply pressure to the concrete under the action of the pressing machine, so that the compression strength test of the concrete is completed.
Example 2: referring to fig. 11, it is shown that: the device provided in the embodiment of the present invention has the same implementation principle and technical effects as those of embodiment 1, and for brevity, reference may be made to the corresponding contents of embodiment 1.
The driving device comprises a second driving component 84, the second driving component 84 comprises a torsion spring 842 and two driving devices respectively positioned at two ends of the torsion spring 842, the driving devices comprise a connecting plate 843, an annular tube 841 arranged at the lower end of the connecting plate 843 and a driving roller 844 connected with the connecting plate 843 through a main shaft, one end of the main shaft extending out of the connecting plate 843 is fixedly connected with a belt pulley 845, the annular tube 841 is sleeved on a supporting rod 81, the belt pulley 845 is connected with the supporting rod 81 through a belt, and the driving roller 844 is contacted with the side wall of the test die 2
The torsion spring 842 is arranged to facilitate the operation thereof to force the two connecting plates 843 to always have a trend of approaching each other so as to enable the driving roller 844 to be attached to the side wall of the test die 2, and the driving roller 844 is driven to rotate through the rotation of the supporting rod 81, so that the rotation of the test die 2 is realized.
When the concrete compression strength test device is used, corresponding test dies 2 and pressing plates 43 are selected according to concrete compression strength test requirements, the pressing plates 43 are installed on the transmission rods 41, the test dies 2 are arranged between the first disc 5 and the second disc 6, the first disc 5 and the second disc 6 are pressed against two ends of the test dies 2 under the action of the rotating shaft 71, the pressing plates 43 are positioned in the test dies 2, concrete is filled in the test dies 2 through the feeding pipes 22, the test dies 2 rotate under the action of the driving device while filling, the concrete is uniformly distributed, and after filling, the pressing plates 43 are moved to apply pressure to the concrete under the action of the pressing machine, so that the compression strength test of the concrete is completed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Test piece forming device for compression strength test of extrusion type flexible concrete, which is characterized in that: including backup pad (1), be located test die (2) of backup pad (1) top and be used for connecting drive restriction device (3) of backup pad (1) and test die (2), test die (2) parallel support pad (1) place and be tubular structure, drive restriction device (3) include first disc (5), second disc (6), run through extrusion mechanism (4) of first disc (5) and be located drive mechanism (8) of first disc (5) and second disc (6) below, both ends at test die (2) are placed respectively to first disc (5) and second disc (6), extrusion mechanism (4) include transfer line (41) and install clamp plate (43) in transfer line (41) one end, the one end that transfer line (41) have clamp plate (43) stretches into in test die (2) and extrudees concrete, drive mechanism (8) include motor (82), bracing piece (81) and the cover that one end is connected with motor (82) output shaft are established on bracing piece (81), bracing piece (81) are passed through to drive mechanism (4) and are connected with drive device (81) through bearing (81), the first driving component (83) comprises a sleeve (832) and two extrusion discs (831) respectively positioned at two ends of the sleeve (832), a plurality of limiting screws (833) are fixedly connected to two end surfaces of the sleeve (832), the limiting screws (833) penetrate through the extrusion discs (831) to be connected with nuts, the sleeve (832) is sleeved on a supporting rod (81), and the side wall threads of the sleeve (832) are provided with limiting bolts, the inner ends of the limiting bolts are propped against the side wall of the supporting rod (81), the lower ends of the first disc (5) and the second disc (6) are respectively supported on the two sleeve (832), the side walls of the two extrusion discs (831) close to each other are respectively embedded with a plurality of balls which extrude the side wall of the first disc (5) or the second disc (6), the driving component comprises a second driving component (84), the second driving component (84) comprises a torsion spring (842) and two driving devices respectively positioned at two ends of the torsion spring (842), the driving devices 843 comprise a connecting plate (843), the driving devices are mounted at one end of the connecting plate (843) and the other end (843) of the connecting plate (843) are connected with the main shaft (843) through the connecting plate (843), the belt pulley (845) is connected with the supporting rod (81) through a belt, the driving roller (844) is in contact with the side wall of the test die (2), a plurality of buckle sliding grooves (52) are formed in the side wall of the first disc (5) close to the second disc (6), the buckle sliding grooves (52) are formed in the radial direction of the first disc (5), a tubular motor (53) with threads in the middle of the outer side wall is arranged in the buckle sliding grooves (52), a plurality of arc pressing plates (54) are arranged on the side edge of the first disc (5), a buckle sliding plate fixedly connected with the side edge of the arc pressing plates (54) is arranged in the buckle sliding grooves (52), threads of the tubular motor (53) penetrate through the buckle sliding plate, the test die (2) is located among the plurality of arc pressing plates (54), and clamping plates on the side wall of the arc pressing plates (54) are inserted into clamping grooves on the side wall of the test die (2).
2. The test piece forming device for compression strength test of extruded flexible concrete according to claim 1, wherein the end face of the transmission rod (41) is fixedly connected with a chuck (411), the side wall of the pressing plate (43) is provided with a buckling groove (431) along the radius direction, and the chuck (411) is arranged in the buckling groove (431).
3. The test piece forming device for compression strength test of extrusion type flexible concrete according to claim 1, wherein a circular hole is formed in the side wall of the first disc (5), a convex column is fixedly connected to the inner side wall of the circular hole, the transmission rod (41) penetrates through the circular hole, and the convex column extends into a limiting chute in the side wall of the transmission rod (41).
4. The test piece forming device for compression strength test of extrusion type flexible concrete according to claim 1, wherein a feeding pipe (22) is arranged on the side wall of the test mould (2), a sealing column (23), a connecting rod (25) arranged above the sealing column (23) and a threaded column (24) arranged at the upper end of the connecting rod (25) are arranged at the position of the feeding pipe (22), the threaded column (24) is arranged at the upper end inside the feeding pipe (22) in a threaded manner, the sealing column (23) is arranged at the lower end inside the feeding pipe (22), the lower side surface of the sealing column (23) is of an arc-shaped structure, and a polygonal groove (21) for mounting a polygonal column (61) on the side wall of the second disc (6) is vertically formed in the middle of the end surface of the test mould (2).
5. The test piece forming device for compression strength test of extrusion type flexible concrete according to claim 1, wherein the driving limiting device (3) further comprises two symmetrically placed limiting mechanisms (7), each limiting mechanism (7) comprises a rotating shaft (71), vertical plates (73) located at two ends above the rotating shaft (71) and arc-shaped retaining plates (75) installed on the sides of the vertical plates (73), two thread structures (72) are symmetrically arranged at two ends of the side wall of the rotating shaft (71), sliding clamping plates (74) are fixedly connected below the vertical plates (73) and sleeved on the rotating shaft (71) in a threaded mode, the two arc-shaped retaining plates (75) are installed in a first annular groove (51) and a second annular groove (62) of the first disc (5) and the second disc (6) respectively, and a plurality of balls are embedded on the side walls of the arc-shaped retaining plates (75).
6. The test piece forming device for compression strength test of extrusion type flexible concrete according to claim 5, wherein the upper side surface of the supporting plate (1) is provided with an open structure (11) penetrating up and down, two edges in the open structure (11) are provided with rollers (13), the rollers (13) support the test mold (2), two ends below the supporting plate (1) are provided with vertical plates (14), two ends of the supporting rod (81) penetrate through the vertical plates (14), two edges of the upper side surface of the supporting plate (1) are provided with sliding clamping grooves (12), and the lower end of the sliding clamping plate (74) and the rotating shaft (71) are installed in the sliding clamping grooves (12).
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